.list {
    height: 2000px;
    /* border: 1px solid #ccc; */
}
.list .list-bd ul li {
    float: left; 
    margin-right: 10px;
}
.list .list-bd ul li a{
    width: 290px;
    height: 460px;
    background: url(../images/手机.png) no-repeat center;
    /* background-color: aqua; */
    display: inline-block;
}
